#define _CRT_SECURE_NO_WARNINGS

#include <iostream>

#include <string>
using namespace std;

namespace h
{
	int r = 1;
}
using namespace h;

int main()
{
	std::string s1("chen xian huan");
	std::string::iterator it = s1.begin();

	cout << r << endl;
	return 0;
}